Although there are some differences, basically you can use PLR Videos in most of the ways to use other private label content already discussed.
In particular see The PLR Blog: Using Private Label Articles For Blog Posts, PLR Newsletters And eCourses and Create Resale Rights eBooks From PLR Products.
As before, the most popular option is just to make a couple of edits to the sales page and start selling the PLR product unchanged. Take note here though that many producers of PLR videos forbid you to pass on the PLR rights to your customers, so make sure you knkow what you're getting before you buy.
I recommend you do at least try to get your name, website URL and logo, etc., into either the start or the end of the video. If you're computer illiterate and shudder at the thought, get a friend or someone else to do it for you. You never know where your video may end up, nor how many people may see it. Not branding it with your own details seems a waste.
As most of the PLR videos you'll find are on related subjects, it's quite easy to use PLR videos as the basis for a membership site. This is particularly good with screen capture videos that you have changed the audio track on and can supply transcripts for. Read more about using PLR content for membership sites here
Giving videos away to bring new subscribers to your list works well. Sell the benefits of the video to your prospect almost as hard as if you wanted them to pay for it, but offer it free in exchange for their email address.
Used with other products you may have, private label videos make good bonus materials to increase the perceived value of your offer. They're also good for creating your own bundles, either with other related videos or ebooks. Alternatively, you might want to utilize the videos in your affiliate marketing promotions with a "buy through my link and get ..." bonus offer.
One exciting use unique to PLR videos comes courtesy of YouTube. Uploading a video to YouTube is a great way to bring visitors to your website or affiliate offer. You get traffic both directly from YouTube and any other sites that might post your video, plus you also get traffic indirectly, thanks to the effect the backlinks gained have on the ranking of your website (assuming you put your link in the description).